a,
input,
button {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

input,
button {
    -webkit-appearance: none;
    border-radius: 0;
    border-width: 0;
}

body {
    margin: 0;
    -webkit-user-select: none;
    font-family: '微软雅黑', Arial, Helvetica, sans-serif;
}

body * {
    -webkit-user-select: none;
    font-family: Helvetica;
}

body {
    -webkit-text-size-adjust: 100%;
    color: #f5f5f5;
}

h1,
h2,
h3,
h4,
p,
dd,
dl {
    margin: 0;
}

a {
    text-decoration: none;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    vertical-align: top;
}

body,
html {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.clearfix:after {
    content: '';
    display: block;
    clear: both;
}